{"id":623,"date":"2025-12-07T15:40:42","date_gmt":"2025-12-07T07:40:42","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=623"},"modified":"2025-12-07T15:40:42","modified_gmt":"2025-12-07T07:40:42","slug":"%e4%bd%bf%e7%94%a8-net%e6%a0%87%e5%87%86%e5%ba%93%e5%ae%9e%e7%8e%b0%e5%a4%9a%e4%bb%bb%e5%8a%a1%e5%b9%b6%e8%a1%8c%e5%a4%84%e7%90%86%e7%9a%84%e8%af%a6%e7%bb%86%e8%bf%87%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/07\/%e4%bd%bf%e7%94%a8-net%e6%a0%87%e5%87%86%e5%ba%93%e5%ae%9e%e7%8e%b0%e5%a4%9a%e4%bb%bb%e5%8a%a1%e5%b9%b6%e8%a1%8c%e5%a4%84%e7%90%86%e7%9a%84%e8%af%a6%e7%bb%86%e8%bf%87%e7%a8%8b\/","title":{"rendered":"\u4f7f\u7528.NET\u6807\u51c6\u5e93\u5b9e\u73b0\u591a\u4efb\u52a1\u5e76\u884c\u5904\u7406\u7684\u8be6\u7ec6\u8fc7\u7a0b"},"content":{"rendered":"\n

\u4e0b\u9762\u7ed9\u4f60\u4e00\u4efd \u300a\u4f7f\u7528 .NET \u6807\u51c6\u5e93\u5b9e\u73b0\u591a\u4efb\u52a1\u5e76\u884c\u5904\u7406\u7684\u8be6\u7ec6\u8fc7\u7a0b\uff08\u6700\u5b8c\u6574\u6559\u7a0b\uff09\u300b<\/strong>\uff0c\u5b8c\u5168\u57fa\u4e8e .NET Standard \/ .NET Core \/ .NET 5\u20138<\/strong> \u901a\u7528\u7684\u6807\u51c6\u5e93 API\uff08\u65e0\u4efb\u4f55\u7b2c\u4e09\u65b9\u5e93\uff09\u3002<\/p>\n\n\n\n

\u5185\u5bb9\u5305\u62ec Task\u3001\u7ebf\u7a0b\u6c60\u3001Parallel\u3001\u540c\u6b65\u673a\u5236\u3001\u6700\u4f73\u5b9e\u8df5\u7b49\uff0c\u5168\u6808\u53ef\u7528\u3002<\/p>\n\n\n\n

\n\n\n\n

\u2b50 \u4e00\u3001.NET \u6807\u51c6\u5e93\u5e76\u884c\u80fd\u529b\u603b\u89c8<\/h1>\n\n\n\n

.NET \u63d0\u4f9b\u4ee5\u4e0b\u6807\u51c6\u5e93\u7528\u6765\u5b9e\u73b0\u5e76\u884c\u7a0b\u5e8f\uff1a<\/p>\n\n\n\n

\u6280\u672f<\/th>\u547d\u540d\u7a7a\u95f4<\/th>\u573a\u666f<\/th><\/tr><\/thead>
Task \/ async-await<\/strong><\/td>System.Threading.Tasks<\/td>\u73b0\u4ee3\u5f02\u6b65\u4e0e\u5e76\u884c\u4efb\u52a1<\/td><\/tr>
Task.Run()<\/strong><\/td>System.Threading.Tasks<\/td>\u7ebf\u7a0b\u6c60\u540e\u53f0\u4efb\u52a1<\/td><\/tr>
Parallel.For \/ Parallel.ForEach<\/strong><\/td>System.Threading.Tasks.Parallel<\/td>CPU \u5bc6\u96c6\u578b\u5faa\u73af\u5e76\u884c<\/td><\/tr>
ThreadPool<\/strong><\/td>System.Threading<\/td>\u8d85\u4f4e\u7ea7\u624b\u52a8\u63a7\u5236\u7ebf\u7a0b\u6c60<\/td><\/tr>
Thread<\/strong><\/td>System.Threading<\/td>\u6700\u5e95\u5c42\u7ebf\u7a0b\u63a7\u5236<\/td><\/tr>
\u9501\uff08lock, Monitor\uff09<\/strong><\/td>System.Threading<\/td>\u591a\u7ebf\u7a0b\u540c\u6b65<\/td><\/tr>
\u5e76\u53d1\u96c6\u5408<\/strong><\/td>System.Collections.Concurrent<\/td>\u5b89\u5168\u6570\u636e\u7ed3\u6784<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud83d\udc47 \u4ee5\u4e0b\u5c06\u624b\u628a\u624b\u6df1\u5165\u8bb2\u89e3\u3002<\/p>\n\n\n\n

\n\n\n\n

\u2b50 \u4e8c\u3001\u6700\u63a8\u8350\u7684\u65b9\u5f0f\uff1aTask + async\/await<\/h1>\n\n\n\n

\u2714 1. \u542f\u52a8\u4e00\u4e2a\u540e\u53f0\u4efb\u52a1<\/h2>\n\n\n
\nusing System;\nusing System.Threading.Tasks;\n\nclass Program\n{\n    static async Task Main()\n    {\n        Task task = Task.Run(() =>\n        {\n            Console.WriteLine("\u8fd0\u884c\u4efb\u52a1...");\n        });\n\n        await task;\n        Console.WriteLine("\u4efb\u52a1\u5b8c\u6210");\n    }\n}\n\n<\/pre><\/div>\n\n\n
\u2714 \u4f7f\u7528\u7ebf\u7a0b\u6c60
\u2714 \u81ea\u52a8\u8c03\u5ea6
\u2714 \u6700\u4f73\u5b9e\u8df5<\/p>\n\n\n\n
\n\n\n\n
\u2714 2. \u5e26\u8fd4\u56de\u503c\u7684\u4efb\u52a1<\/h2>\n\n\n
\nTask&lt;int> task = Task.Run(() =>\n{\n    return 123;\n});\n\nint result = await task;\nConsole.WriteLine(result);\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
\u2714 3. \u591a\u4e2a\u4efb\u52a1\u5e76\u884c\u6267\u884c\uff08WhenAll\uff09<\/h2>\n\n\n
\nvar tasks = new[]\n{\n    Task.Run(() => DoWork(1)),\n    Task.Run(() => DoWork(2)),\n    Task.Run(() => DoWork(3))\n};\n\nawait Task.WhenAll(tasks);\nConsole.WriteLine("\u6240\u6709\u4efb\u52a1\u5b8c\u6210");\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
\u2714 4. \u591a\u4efb\u52a1\u5e76\u884c + \u8fd4\u56de\u503c<\/h2>\n\n\n
\nvar tasks = Enumerable.Range(1, 5)\n    .Select(i => Task.Run(() => i * 10));\n\nint[] results = await Task.WhenAll(tasks);\n\nConsole.WriteLine(string.Join(",", results));\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
\u2b50 \u4e09\u3001Parallel.For \/ Parallel.ForEach\uff08CPU \u5bc6\u96c6\u578b\uff09<\/h1>\n\n\n\n
\u9002\u7528\uff1a
\u2714 \u56fe\u50cf\u5904\u7406
\u2714 \u6570\u636e\u5904\u7406
\u2714 CPU \u8ba1\u7b97
\u2714 \u6279\u91cf\u4efb\u52a1\u5e76\u884c<\/p>\n\n\n\n
\u2714 Parallel.For<\/h2>\n\n\n
\nParallel.For(0, 10, i =>\n{\n    Console.WriteLine($"\u4efb\u52a1 {i} \u5728\u7ebf\u7a0b {Task.CurrentId}");\n});\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
\u2714 Parallel.ForEach<\/h2>\n\n\n
\nvar list = Enumerable.Range(1, 10);\n\nParallel.ForEach(list, i =>\n{\n    Console.WriteLine($"\u5904\u7406 {i}");\n});\n\n<\/pre><\/div>\n\n\n
\u7279\u70b9\uff1a
\u2714 \u4f7f\u7528\u591a\u4e2a CPU \u6838\u5fc3
\u2714 \u81ea\u52a8\u8d1f\u8f7d\u5747\u8861
\u2714 \u81ea\u52a8\u7ebf\u7a0b\u6c60\u8c03\u5ea6<\/p>\n\n\n\n
\n\n\n\n
\u2b50 \u56db\u3001Task + Parallel \u6df7\u5408\u4f7f\u7528\uff08\u4f01\u4e1a\u7ea7\u5e38\u7528\uff09<\/h1>\n\n\n
\nawait Task.Run(() =>\n{\n    Parallel.ForEach(files, file =>\n    {\n        ProcessFile(file);\n    });\n});\n\n<\/pre><\/div>\n\n\n
\u2714 \u5c06 CPU \u5bc6\u96c6\u4efb\u52a1\u4e22\u5230\u540e\u53f0
\u2714 Parallel \u5728\u5185\u90e8\u4f7f\u7528\u591a\u6838\u6267\u884c<\/p>\n\n\n\n
\n\n\n\n
\u2b50 \u4e94\u3001\u7ebf\u7a0b\u6c60\uff08ThreadPool\uff09<\/h1>\n\n\n\n
\u5982\u679c\u4f60\u9700\u8981\u66f4\u5e95\u5c42\uff1a<\/p>\n\n\n
\nThreadPool.QueueUserWorkItem(_ =>\n{\n    Console.WriteLine("\u7ebf\u7a0b\u6c60\u4efb\u52a1");\n});\n\n<\/pre><\/div>\n\n\n
\u9002\u7528\uff1a
\u2714 \u9ad8\u6027\u80fd\u540e\u53f0\u6267\u884c
\u2714 \u4e0d\u5173\u5fc3\u8fd4\u56de\u503c
\u2714 \u6781\u8f7b\u91cf<\/p>\n\n\n\n
\u4e00\u822c\u4e0d\u63a8\u8350\u76f4\u63a5\u7528\uff0cTask \u5df2\u7ecf\u5c01\u88c5\u5f97\u8db3\u591f\u597d\u3002<\/p>\n\n\n\n
\n\n\n\n
\u2b50 \u516d\u3001Thread\uff08\u6700\u5e95\u5c42\uff0c\u4e0d\u5efa\u8bae\u5e38\u7528\uff09<\/h1>\n\n\n
\nvar thread = new Thread(() =>\n{\n    Console.WriteLine("\u65b0\u7ebf\u7a0b\u6267\u884c");\n});\nthread.Start();\nthread.Join();\n\n<\/pre><\/div>\n\n\n
\u9002\u7528\uff1a
\u2714 \u6781\u7279\u6b8a\u60c5\u51b5
\u2714 \u5fc5\u987b\u6307\u5b9a STA\/MTA
\u2714 \u5fc5\u987b\u771f\u5b9e\u64cd\u4f5c\u7ebf\u7a0b\u751f\u547d\u5468\u671f<\/p>\n\n\n\n
\u5e73\u5e38\u7528 Task \u5c31\u591f\u4e86\u3002<\/p>\n\n\n\n
\n\n\n\n
\u2b50 \u4e03\u3001\u7ebf\u7a0b\u540c\u6b65\uff08lock\u3001Monitor\uff09<\/h1>\n\n\n\n
\u5f53\u591a\u4e2a\u4efb\u52a1\u8bbf\u95ee\u5171\u4eab\u53d8\u91cf\u65f6\u8981\u52a0\u9501\u3002<\/p>\n\n\n
\nprivate static object locker = new object();\nprivate static int counter = 0;\n\nParallel.For(0, 10000, i =>\n{\n    lock (locker)\n    {\n        counter++;\n    }\n});\n\n<\/pre><\/div>\n\n\n
\u7ebf\u7a0b\u5b89\u5168\u8f93\u51fa\uff1a<\/p>\n\n\n
\nConsole.WriteLine(counter);\n\n<\/pre><\/div>\n\n\n
\n\n\n\n
\u2b50 \u516b\u3001\u4f7f\u7528\u5e76\u53d1\u96c6\u5408\uff08\u63a8\u8350\u66ff\u4ee3\u9501\uff09<\/h1>\n\n\n\n
.NET \u6807\u51c6\u5e93\u63d0\u4f9b\u7ebf\u7a0b\u5b89\u5168\u96c6\u5408\uff1a<\/p>\n\n\n\n